defence exam Army Havildar SAC Mock Test Series 2025 Physics Electric Fields and Gauss' Law Electric Flux
The magnitude of the flux through an area element ΔS of a sphere of radius r, which encloses a point charge q at its centre is _______________.
1
q2ΔS/(4πεor2)
2
qΔS/(4πεor2)
3
qΔS/(4πεor)
4
q2ΔS/(4πεor)